676686 has 16 divisors (see below), whose sum is σ = 1400400. Its totient is φ = 217728.

The previous prime is 676679. The next prime is 676703. The reversal of 676686 is 686676.

676686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

676686 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1771 + ... + 2118.

It is an arithmetic number, because the mean of its divisors is an integer number (87525).

2⁶⁷⁶⁶⁸⁶ is an apocalyptic number.

676686 is an abundant number, since it is smaller than the sum of its proper divisors (723714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

676686 is a wasteful number, since it uses less digits than its factorization.

676686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923.

The product of its digits is 72576, while the sum is 39.

The square root of 676686 is about 822.6092632593. The cubic root of 676686 is about 87.7935068871.

The spelling of 676686 in words is "six hundred seventy-six thousand, six hundred eighty-six".